From wikipedia: There are two versions of this film. One is the theatrical version while the other is a heavily edited version aired for television only. The edited version adds in cut scenes such as an animated intro, their neighbor being revealed to be a transvestite, footage on the spaceship and all drug-related scenes cut or altered. Most notably is the contents of Red's duffel bag, which in the TV version contains not hundreds of Thai sticks, but diamonds. A novelization, also written by Cheech and Chong, features many photos of these omitted elements.
The original theatrical release & early home video editions have Cheech singing the song "Ya-Ya" in the scene where he is ironing his clothes for his date. Current releases changed this audio to him humming a different song. Also in the theatrical release, Paul Reubens' character, in an attempt to convince the 9-1-1 operator to send help immediately, finally implores: "Look, I think they're Iranians!" The newer video releases have the line re-dubbed as: "Look, I think they're hippies!"
We here at this website own a bunch of the animated cels, but have never seen the film.
The missing version has finally been uploaded.
From the uploader:
I've been meaning to post this for a while now. This is the elusive TV version of Cheech and Chong's Next Movie. I recorded it off of WXON channel 20 back in the early 80s. This is slightly different from the version that aired on Comedy Central in the 90s. The music is great and the narrative is completely different. All the drug references are removed. There are plenty of extended scenes that weren't in the original theatrical release. The music store scene being my absolute favorite. I hope one day to see a proper release of this gem.